The North Arm Powder Magazine near Port Adelaide, South Australia, was from 1858 to 1906 a secure storage facility for dynamite and gelignite used in the construction, mining and quarrying industries.
They were seen as a risk, if they were to explode, because they were close to new bridge and developing residential areas.
[1] The South Australian Government constructed the magazine in 1858 as a lightweight structure on wooden poles due to its location at the tidal creek.
[1] As the magazine was encroached by housing, only a decade after its commissioning proposals were made for its abandonment.
However, it was not taken out of service until more than three decades later, in 1906, when its contents were transferred to the new Dry Creek explosives depot.